Hawk Moth (later known as Shadow Moth and Monarch) is the primary antagonist of Miraculous: Tales of Ladybug & Cat Noir. His true identity is Gabriel Agreste, a renowned fashion designer and the father of the show's male protagonist, Adrien Agreste (Cat Noir).Powers and MotivationsThe Ultimate Goal: Gabriel desires the Ladybug and Cat Miraculouses. By combining them, he wishes to alter reality and resurrect his comatose wife, Émilie Agreste.Butterfly Miraculous: Using his butterfly-themed jewel and kwami named Nooroo, he transforms ordinary people experiencing negative emotions into supervillains under his control.Shadow Moth / Monarch: Throughout the series, he unifies the Butterfly Miraculous with other stolen Miraculouses—such as the Peacock or the Miraculous of Evolution—to constantly upgrade his powers and adapt to Ladybug and Cat Noir.Key Character Arcs & ImpactThe Secret Identity Dilemma: For multiple seasons, Hawk Moth fights his own son, Cat Noir, entirely unaware of Adrien's secret superhero identity. Similarly, Adrien and Ladybug do not realize their enemy is the man Adrien calls father.Akumatization: Whenever a citizen in Paris gets upset, angry, or heartbroken, Gabriel senses their distress. He sends out a dark butterfly (an "akuma") to possess them, granting them unique powers in exchange for bringing him the heroes' Miraculouses.